Zac,
That is a long drive, no doubt. Plus you would have to load the spare doors, decklid, hood, and dash into the car somehow. I agree, $3500. might sweeten the deal a little more.
Again, you have to factor in transportation. Whether or not you're going to attempt to drive it home or have it transported. I would do my homework and figure out the logistics of the deal. Weigh your pros and cons.
Not only from a monetary standpoint, but practicality as well.
I honestly think he's depending on an out of state buyer. I don't think it would appeal to a local buyer up there. So that might be your ace in the hole.